is Frank Sadilek death in 1970 reason for Halloween card?

SOME sources claim that the 13 is because the Hells Angels in San Francisco were originally organized in 1953 by Rocky Graves, a Hells Angel member from San Bernardino (“Berdoo”). This implies that the “Frisco” Hells Angels were very much aware of their forebears. According to another account,[22] the Hells Angels club was a successor to […]